2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/104859We study integrals over the triangle with vertices (1,0), (0,1), (1,1) that give linear combinations of multiple zeta values.v2: a remark and corrollary are added. They concern the representation of the integral and multiple zeta values with the help of only ordinary zeta values. v3: The typo in the definition for H_l is corrected. A new paragraph is added after CorollaryNumber TheoryClassical Analysis and ODEs11M06text